The original is plastic Upgraded brass coupler can increase the durability and tire weighting also can widen the tire 1.5MM on one side
can increase the weight of the vehicle
Increase the steel of the vehicle, improve climbing performance
More Durable Use
Fit for TRX4M 1/18 4WD Brass Wheel Hex Hub H7*5.5MM Parts
Description
Brass Wheel Hex Hub H7*5.5MM Brass Widening Combiner Widening 1.5MM with 1.5*6 Pin 4P
The original is plastic Upgraded brass coupler can increase the durability and tire weighting also can widen the tire 1.5MM on one side